Personally, I'd support an alternative to copyright for letting creators earn living expenses while working or in reward for good works. But it's a terrible thing to offer them the copyright system and then ignore it to use the works they hoped could earn money. And to further use those works to make something that will replace a lot of creative positions they've relied on because copyright only pays off after the work's been done.
Maybe the government should set up a fund to pay all the copyright holders whose works were used to train the AI models. And if it's a pain to track down the rights holders, I'll play a tiny violin.